Genomic Characterization and Environmental Distribution of a Thermophilic Anaerobe Dissulfurirhabdus thermomarina SH388T Involved in Disproportionation of Sulfur Compounds in Shallow Sea Hydrothermal Vents

Type Article
Date 2020-08
Language English
Author(s) Allioux Maxime1, Yvenou Steven1, Slobodkina Galina2, Slobodkin Alexander2, Shao Zongze3, Jebbar Mohamed1, Alain Karine4
Affiliation(s) 1 : Univ Brest, CNRS, IFREMER, LIA1211, Laboratoire de Microbiologie des Environnements Extrêmes LM2E, IUEM, Rue Dumont d’Urville, F-29280 Plouzané, France
2 : Winogradsky Institute of Microbiology, Research Center of Biotechnology of the Russian Academy of Sciences, 117312 Moscow, Russia
3 : Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China
4 : Univ Brest, CNRS, IFREMER, LIA1211, Laboratoire de Microbiologie des Environnements Extrêmes LM2E, IUEM, Rue Dumont d’Urville, F-29280 Plouzané, France
Source Microorganisms (2076-2607) (MDPI AG), 2020-08 , Vol. 8 , N. 8 , P. 1132 (14p.)
DOI 10.3390/microorganisms8081132
WOS© Times Cited 3
Note This article belongs to the Special Issue Anaerobes in Biogeochemical Cycles
Keyword(s) genome annotation, Dissulfurirhabdus, shallow sea hydrothermal vents, inorganic sulfur compound disproportionation
Abstract

Marine hydrothermal systems are characterized by a pronounced biogeochemical sulfur cycle with the participation of sulfur-oxidizing, sulfate-reducing and sulfur-disproportionating microorganisms. The diversity and metabolism of sulfur disproportionators are studied to a much lesser extent compared with other microbial groups. Dissulfurirhabdus thermomarina SH388T is an anaerobic thermophilic bacterium isolated from a shallow sea hydrothermal vent. D. thermomarina is an obligate chemolithoautotroph able to grow by the disproportionation of sulfite and elemental sulfur. Here, we present the results of the sequencing and analysis of the high-quality draft genome of strain SH388T. The genome consists of a one circular chromosome of 2,461,642 base pairs, has a G + C content of 71.1 mol% and 2267 protein-coding sequences. The genome analysis revealed a complete set of genes essential to CO2 fixation via the reductive acetyl-CoA (Wood-Ljungdahl) pathway and gluconeogenesis. The genome of D. thermomarina encodes a complete set of genes necessary for the dissimilatory reduction of sulfates, which are probably involved in the disproportionation of sulfur. Data on the occurrences of Dissulfurirhabdus 16S rRNA gene sequences in gene libraries and metagenome datasets showed the worldwide distribution of the members of this genus. This study expands our knowledge of the microbial contribution into carbon and sulfur cycles in the marine hydrothermal environments

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Allioux Maxime, Yvenou Steven, Slobodkina Galina, Slobodkin Alexander, Shao Zongze, Jebbar Mohamed, Alain Karine (2020). Genomic Characterization and Environmental Distribution of a Thermophilic Anaerobe Dissulfurirhabdus thermomarina SH388T Involved in Disproportionation of Sulfur Compounds in Shallow Sea Hydrothermal Vents. Microorganisms, 8(8), 1132 (14p.). Publisher's official version : https://doi.org/10.3390/microorganisms8081132 , Open Access version : https://archimer.ifremer.fr/doc/00651/76270/